Re: [Xen-users] Windows domU opitimization

[Sylvain Viollat <sviollat@xxxxxxxxxxxxx>]

Thanks all for your answers. I'll give the different options a try & 
post an update on the list asap
Sylvain.


James Harper a écrit :
> > Hello,
> >
> > I'm new to Xen and after properly configured a couple of Linux based
> > VMs, I'm giving a try to a Windows XP domU.
> >
> > Installation is going just fine, network performances are pretty good
> > after installing the gplpv driver (1Gb link properly recognized), but
> > opening a session and usage is very slow through RDP.
> In your boot.ini file, add /PATCHTPR to the boot line, eg:
>
> multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP
> Professional" /noexecute=optin /fastdetect /patchtpr
>
> This may give you some speed increase depending on the CPU you are
> using.
>
> /PATCHTPR activates a feature in gplpv that patches the windows kernel
> to avoid using a certain hardware register (Task PRiority). Access to
> the register is very slow, and it is accessed very frequently.
>
> James
>
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